Lunch Lady Peanut Butter Bars

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These no-bake Lunch Lady Peanut Butter Bars are a nostalgic dessert that brings back memories of school cafeteria lunches. With a soft peanut butter base and then topped with rich chocolate, these old-fashioned peanut butter bars are an easy homemade dessert that’s always a crowd favorite.  

Lunch Lady Peanut Butter Bars stacked

Lunch Lady Peanut Butter Bars are an old-fashioned dessert that became popular in school cafeterias across the United States. These delicious bars feature a soft peanut butter layer and finished with a layer of rich chocolate. If you grew up enjoying cafeteria desserts, chances are you remember these classic school cafeteria peanut butter bars.

This is by far the best recipe for lunch lady peanut butter bars I have tried. Unlike our classic peanut butter bars recipe that uses peanut butter in the chocolate layer, this recipe is different and a beloved school classic. These are so easy to make and kids especially love them. All you need is 5 ingredients! I like to make these peanut butter bars for holidays, birthday parties, and summer barbecues!

Why You’ll Love These Lunch Lady Bars

  • Quick and easy. One of the best things about these no bake chocolate peanut butter bars is how simple they are to make. There’s no complicated decorating or fancy techniques—just classic homemade goodness that’s been loved for generations.
  • Perfect Peanut Butter and Chocolate Combination. Peanut butter and chocolate are a timeless pairing. The creamy peanut butter layers balance perfectly with the rich layer of chocolate. Similar to a Reese’s in bar form.
  • Easy pantry staple ingredients. Made with only 5 simple ingredients that most everyone has on hand.
  • Perfect for potlucks and parties. This is a great dessert recipe to feed a large crowd. Plus, everyone loves them!

Ingredients Needed

These old-fashioned peanut butter bars use simple pantry ingredients to create their signature flavor and texture (find the exact amounts on the recipe card below).

  • Butter: Salted or unsalted will be fine (I prefer unsalted).
  • Powdered Sugar. This gives the peanut butter layer the perfect amount of sweetness.
  • Graham Cracker Crumbs. I prefer to crush honey graham crackers, but feel free to use cinnamon graham crackers or even chocolate!
  • Peanut Butter. This recipe calls for smooth and creamy peanut butter. If you want a little texture, use crunchy peanut butter instead.
  • Chocolate Chips. I prefer semi-sweet chocolate chips.
ingredients needed to make lunch lady peanut butter bars

How to Make Lunch Lady Peanut Butter Bars

Prep time for these rich treats is only 15 minutes. As long as you can wait for them to firm up in the fridge for at least 1 hour, it takes such little time!

  • Prepare a Baking Dish. You will need to line an 8×8 baking dish with aluminum foil. Make sure there is some extra hanging over the sides for easy removal. Parchment paper will also work great.
  • Make the First Layer. In a large microwave-safe bowl, melt the butter. Mix the melted butter with the powdered sugar, graham cracker crumbs, and peanut butter. Make sure it is well combined and smooth.
  • Add to the Dish. Pour the peanut butter mixture into the bottom of the lined baking dish. Spread it evenly with a spatula.
  • Prepare Chocolate. Melt the chocolate chips in 30-second intervals in the microwave, stirring each time until smooth. Use a medium microwave-safe bowl for this step.
  • Add to the First Layer. Pour the melted chocolate over the top of the peanut butter mixture and spread evenly.
  • Chill. Place in the refrigerator for 1 hour to firm up.
  • Serve. Slice into 16 equal bars and enjoy!
a hand holding a Lunch Lady Peanut Butter Bar

Tips and Variations

Additional Toppings. Sprinkle chopped roasted peanuts over the chocolate for extra crunch or candies like M&M’s.

Chocolate Layer. Swap the semi-sweet chocolate chips for milk chocolate, dark chocolate or even peanut butter chips for even more peanut butter flavor. You could even do a combination of both.

Pan Ideas. Want an easy way to serve these for a crowd? Use a cupcake pan! Spoon each of the layers into the portions. Cupcake liners will make cleanup a breeze and keep them from sticking.

Decorate For Holidays. Top with festive sprinkles to make these bars perfect for Christmas cookie trays, birthdays, or bake sales.

lunch lady peanut butter bars on red and white napkin with a glass of milk

Storing and Freezing

Lunch Lady Peanut Butter Bars are one of the best make-ahead desserts because they stay soft and delicious for several days. They’re perfect for preparing the day before a party, holiday, or bake sale.

  • Store the bars in an airtight container for up to 4 days in the fridge for up to 1 week.
  • Freeze individual bars in an airtight container for up to 3 months. Thaw at room temperature before serving.
Lunch Lady Peanut Butter Bars feature
5 from 3 votes

Lunch Lady Peanut Butter Bars

These no-bake Lunch Lady Peanut Butter Bars are a nostalgic dessert that brings back memories of school cafeteria lunches. With a soft peanut butter base and then topped with rich chocolate, these old-fashioned peanut butter bars are an easy homemade dessert that's always a crowd favorite.  
Servings: 16 Servings
Prep: 15 minutes
Chill Time: 1 hour
Total: 1 hour 15 minutes

Ingredients
  

Instructions

  • Line a 8×8 baking dish with foil and leave some overhang on the sides to make it easier to remove the bars from pan.
  • In a large microwave bowl melt the butter.
  • To the butter add the powdered sugar, graham cracker crumbs and peanut.
  • Mix until well combined.
  • Spread the peanut butter mixture evenly into the bottom of the pan.
  • In a medium microwave safe bowl melt the chocolate chips in 30 second intervals until melted and smooth.
  • Refrigerate 1 hour until firm.
  • Remove the bars from pan and carefully slice into 16 bars.
  • Serve!

Last Step:

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Notes

Store leftovers covered in the refrigerator for 3-4 days.

Nutrition

Calories: 340kcal | Carbohydrates: 32g | Protein: 5g | Fat: 22g | Saturated Fat: 10g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 8g | Trans Fat: 0.2g | Cholesterol: 17mg | Sodium: 135mg | Potassium: 218mg | Fiber: 3g | Sugar: 25g | Vitamin A: 188IU | Calcium: 25mg | Iron: 2mg

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5 from 3 votes

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5 comments on “Lunch Lady Peanut Butter Bars”

  1. Laurette Moore

    5 stars
    This was a great recipe. I have made this three times. First time exactly as written, but as you wrote, if left out for the peanut butter bottom will melt (which it did). The second and Third times, I made it with chocolate on the bottom and top with the peanut in the center. This keeps it from melting and able to hold without a huge mess. Either way, it was great, my Husband LOVES it.

  2. 5 stars
    I tried to give this 5 stars but there’s something wrong with the rating and it won’t work. Great recipe and a keeper!